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The genuine OEM Goodman B1392139 is a view port (sight port) bushing for the Goodman/Amana ADVC80805CNBA furnace. This bushing seats in the burner-compartment access opening and provides a sealed, heat-resistant window bushing so technicians can visually inspect the burner flame without compromising the sealed combustion chamber. A cracked or missing bushing can allow air leakage that affects flame stability and combustion efficiency.
The OEM Goodman bushing is molded to the precise port diameter and rated for burner-compartment temperatures. Generic grommets may not seal fully or withstand the heat, leading to air leaks or degradation. OEM ensures a proper, lasting seal for the ADVC80805CNBA.
Easy (1/5). Press-fit into the port opening by hand — no tools required. A 5-minute replacement. Ensure the port surface is clean so the bushing seats fully. Power off before opening the burner compartment.